by Prof. DR. Taliziduhu Ndraha $11.00
by Drs. G. Kartasapoetra., dkk $9.00
by Slameto $9.00
by Prof. DR. Made Pidarta $9.00
by Drs. Domi C. Matutina $12.00
by Prof. Dr. Mansoer Paleda $11.00
by Samuel P. Huntington $25.00